Describe the internal anatomy of the kidney, including a
detailed description of the anatomy of a nephron. Include the renal
cortex, renal medulla, medullary (renal) pyramids, renal columns,
renal pelvis, major and minor calyces, glomerulus, glomerular
(Bowman's) capsule, renal tubule, proximal convoluted tubule, loop
of Henle, distal convoluted tubule, collecting duct, and papillary
duct.